[PATCH] D145846: [InstCombine] enhance icmp with sub folds

[Allen zhong via Phabricator via llvm-commits]

Allen updated this revision to Diff 507259.
Allen added a comment.

Address comment
1、delete the repeat ICMP_NE check, as isEquality() already include it
2、use "thwart complexity-based canonicalization" for commuted case


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D145846/new/

https://reviews.llvm.org/D145846

Files:
  llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp
  llvm/test/Transforms/InstCombine/icmp-sub.ll

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